[1] (Arkistoitu – Internet Archive) Appendix 9, Commercial Weights and Measures Units, Customary System of Weights and Measures; National Bureau of Standards, Department of Commerce
samoanews.com
Hayner, Jeff: ASAA planning 1.2 mile swim in Pago Pago harbor. Määritä julkaisu!29.11.2012. Samoa News. Artikkelin verkkoversio. Viitattu 18.1.2014.
[1] (Arkistoitu – Internet Archive) Appendix 9, Commercial Weights and Measures Units, Customary System of Weights and Measures; National Bureau of Standards, Department of Commerce